Gigabyte P67A-D3-B3 DDR3 2133 LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard Core i7/i5/i3 in LGA 1155 package, chipset: Intel P67 Express Chipset Memory: 1.4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory , Audio: Realtek ALC889 codec, High Definition Audio, 2/4/5.1/7.1-channel LAN: 10/100/1000 Mbit Expansion Slots: 1 x PCI Express x16 slot, running at x16, 1 x PCI Express x16 slot, Storage Interface: 2 x SATA 6Gb/s connectors, 4 x SATA 3Gb/s connectors, Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10 1 x power fan header ,1 x front panel header ,1 x front panel audio header ,1 x S/PDIF 2 x SATA 6Gb/s connectors ,4 x SATA 3Gb/s connectors ,1 x CPU fan header ,2 x system fan headers , Back Panel Connectors: 1 x PS/2 keyboard/mouse port ,1 x parallel port ,1 x serial port ,1 x optical S/PDIF Back panel connectors:Out connector ,4 x USB 2.0/1.1 ports ,2 x USB 3.0/2.0 ports ,1 x RJ-45 port ,3 x audio jacks Dual channel memory, DDR3 2133/1866/1600/1333/1066 MHz memory modules Running at x4, 3 x PCI Express x1 slots, 2 x PCI slots, Support for ATI CrossFireX technology Expansion slot:running at x4, 3 x PCI Express x1 slots, 2 x PCI slots, Support for ATI CrossFireX technology Interna I/O connectors:Out header ,3 x USB 2.0/1.1 headers ,1 x clearing CMOS jumper ,1 x Trusted Platform Module (TPM) header Internal I/O Connectors: 1 x 24-pin ATX main power connector ,1 x 4-pin ATX 12V power connector , Dual channel memory, DDR3 2133/1866/1600/1333/1066 MHz memory modules Storage Interface: 2 x SATA 6Gb/s connectors, 4 x SATA 3Gb/s connectors, Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10 USB: Up to 10 USB 2.0/1.1 ports, 2 USB 3.0/2.0 ports